<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        span{
            padding: 5px 10px;
            background-color: #aaa;
            margin-right: 10px;
            margin-bottom: 5px;
            display: inline-block;
            border-radius: 10px;
        }
    </style>
</head>
<body>
    <div id="app">
        <!-- v-for 列表渲染, item 是数组元素, index 是元素下标 -->
        <!-- v-for="(item,index) in 数组" -->
        <span v-for="(item,index) in arr"> {{ item }} </span>
        
    </div>

    <script src="./vue-2.5.21.js"></script>
    <script src="./index-列表渲染.js"></script>

</body>
</html>